RVI 2.5.2 not GOing

Running an Ion 2.5.2, and and RVI 2.5.2.

The RVI and the Ion are seeing each other, and the show "downloaded" to the RVI from the console.

I can control lights from the RVI manually, and I can "GO TO CUE" from the RVI, but I cannot GO from the RVI.

I've enabled Sparebar GO on both the RVI and the console.  GO will also NOT work from the facepanel on the RVI screen itself.

the cue control faders (Left and Right) are up on the console.

Any thoughts?

Thanks.

Andrew